Fuse emplacing and removing implement



H. B. BUSH. FUSE EMPLAC ING AND REMOVING IMPLEMENT. APPLICATION FILED OCT. 24, I919- RENEWED DEC. 14, I92].

Patented July 18, 1922.

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FUSE EMPLACING AND REMOVING IMPLEMENT. APPLICATION FILED OCT. 24, I919- RENEWED DEC. I4, 1921. 1,422,830.

Patented July 18, 1922.

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HAZEL BUSH, OF BEDFOB-D, OHIO, ASSIGNOR TO THE BUSH ELECTRIC COMPANY, 015 CLEVELAND, OHIO, COR-PORATL'LOI-l' OF OHIO.

FUSE EMPLAGIIIG AND REMOVING IMPLEMENT.

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Application filed October 2-1, 1919, Serial No. 332,915.

To all whom it may concern:

Be it lrnown that l, HAZEL B. B can, a citizen of the United States, residing at Bedford, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement. in Fuse Emplacing and Removing Implements, of which the following is a full, clear, and exact description, reference being made to the acr;ompanying drawings.

The aim of this invention is to produce a safety implement for emplacing electrics fuses within and removing them from their holding clips. It is intended for use more especially in high. voltage work, and in it present design, is particularly adapted for the handling of fuses employed in connection with the usual type of post transformers where the fuses lie horizontally at an elevation a little above an operators head when he occupies a convenient and safe position.

The main objects are to provide an implement of the foregoing nature by means of which a person may conveniently grasp a fuse with a positive hold for the purpose of removing it from its clips; and with a firm but yielding hold when he desires to emplace it therein.

These, and other objects which will become apparent as this description proceeds, are attained in the implement illustrated in the drawings accompanying and forming a part hereof.

In the drawings, Fig. 1 is a perspective view of the implement applied to a fuse supported within its holding clips, the

handle of the implement being broken away; Figs. 2 and 3 illustrate the manner of applying the implement to a fuse; and Fig. 4: is a section on the line l4l of Fig. 3.

The implement is shown associated with a fuse A of the cartridge type, the same being supported, in Fig. 1, within holding clips B.

As hereinbefore stated, the present design of implement is intended for use especially with fuses lying in a horizontal position. Under prevailing methods of installation, these fuses are more conveniently reached from below. Accordingly, in its present design, the implement comprises a handle of suitable length which carries, at its outer end, a curved head that is equipped with Specification of Letters Eatent.

Renewed December 1 1, 1921. Serial No. 522,440.

rappling means so that the user may eadily apply the implement to a fuse from position below the same and in such llltl1ler as to enable him to lift the fuse vertically out of its holding clips.

The handle 1, which is preferably of wood especially treated to render it impervious to moisture and to make of it an effectual insulating medium, is split at its upper end to receive the web l of the curved head 5 along the outer ed e of which extends a flange 7 that passes down over the adjacent end of the handle. Rivets 8 serve to hold the head to the handle. An actuator member 10 is pivoted at 11 to the outer end of the head, and its underneath surface is curved transversely and provided with a suitable pad 12 for engagement with the side of the fuse A. inwardly of its connection with the head the actuator nember 10 has swiveled to its opposite sides, braclrets 14; shown as forked and between the branches whereof are pivoted, upon pins 15, the fuse grappling jaws 16, the same being shown as curved to correspond substantially to the contour of the fuse. The upper ends of the jaws are bifurcated and have journaled within aligning apertures of their opposed branches the ends of thrust blocks 18 having transverse bores through which the outer ends of rods 20 are guided. The inner ends of the rods 20 are equipped with spherical heads 21 contained within socket-s 22 of plates 23 that are secured to the opposite sides of the head 5 in the zone of the jaws 16. A pair of opposed spring cups 25 are applied to each of the rods 20 and contain the ends of thrust springs 26 which surround the rods. A pin 27 extends through the outer end of each rod and serves as a stop to limit the outward movement of the thrust block 18 when it is free to be moved outwardly under-the influence of the spring 26 in the absence of a fuse between the jaws.

inwardly of the jaws 16 the actuator member 10 has pivoted to it, at 30, a latch 31, the nose 32 whereof is adapted to be projected over a keeper 33, that is shown as an integral part of the head 5,. by a spring 3 1, that is compressed between opposed parts of the latch and actuator member, when the actuator member is swung to the limit of its movement toward the head, in which posi tion it is shown in Figs. 1 and 3.

hen it is desired, therefore, to remove a fuse from its holding clips, the implement, in unlatched condition (as shown in Fig. 2) isengaged'over a fuse with the actuator member in contact with one side and the jaws l6 astride the fuse. The operator then I swings the handle downwardly until the swung downwardly against the stop 39, re-

nose of the latch 31 is engaged over the keeper and by reason of the shape of the nose and keeper, the parts are positively locked against disengagement so that the operator may exert whatever power'is necessary to dislodge the fuse from its holding clips withoutliability of disengaging the implement from the fuse. After the fuse has been removed from the clips, it may be taken out of the implement by pulling downwardly on the trigger and thereby unloosening the nose of the latch from the keeper.

When emplaoing a fuse within the holding clips, it is essential that the fuse be held with sutlicient firmness to avoid accidental displacement; but on the other hand, it must be possible for the linemanto readily remove the implement from the fuse after it has been inserted within the holding clips. In other words, considering both the removal and emplacement of the fuse, when removing a fuse from its clips the holding power of the'implement must be superior to that of the clips; whereas, inthe operation of emplacing the fuse, the holding power of the clips must exceed that of the implement. Tov bring about this result, I have included an auxiliary keeper 37 that is pivoted at 38 to the side of the head 5 and which, when places the original keeper 33 by one possessing a shallower notch, the same being designated 33. Now, when the operator inserts a fuse between the grappling jaws and swings the actuator member 10 toward the head to cause the jaws to grip the fuse, the nose 32 of the latch enters the comparatively shallow notch 33 of the auxiliary keeper 37, and when hesubsequently places the fuse within its holding clips he may very readily disengage the implement from the fuse by pulling upwardlyon the handle to withdraw the nose of the latch from the auxiliary keeper. 1

The head 5 is shown as having designations In and Out to indicate the respective positions of the auxiliary keeper when the implement is set for inserting a fuse or for taking one out of the holding clips;

"Attention iscalled to the fact that when. the jaws are in'closed condition, the inner ends of rods '20 are slightly below their outer ends, such being clearly illustrated in Fig. 43 In other words, the connections be tween. the j awe and rods pass over center. so to'speak', sothat now the tendency of the springs 26 is to draw'the head and @Qtuator toward each other. This action assists in holding the latch within the shallow notch of tee auxiliary keeper. Also, it may be pointed out, the spring cups 25 of each rod practically abut as the aforesaid connections swing over center, providing a stop for positively limiting the inward movement of the upper ends of the jaws beyond a certain distance. If this stop were not provided and the upper ends of the aws were maintained apart only by the yielding efforts of the springs 26, the lower ends ofthe jaws might spread to such an extent under the stress of a pull on the implement that they would withdraw from the fuse. A slight yielding of the jaws is desirable, however, as it allows for minor irregularities or differences in the sizes of fuses.

Having thus described my invention, what I claim is 1. In an implement of the class set forth,

the combination of fuse gripping jaws, and an adjustable latch for maintaining the jaws in closed condition with varying degrees of nositiveness. i 2. In an implement of the class set forth, the combination of fuse gripping jaws, means for closing' said jaws, and an adjustable latch for maintaining the aws in closed condition with'varying degrees of positiveness.

3. In animplenient ofthe character set forth, the combination of fuse gripping jaws, means for closing said jaws, and a latch for maintaining the jaws in closed position, the latch incorporating changeable holding means for causing it to hold with'varying degrees of positiveness."

In an implement of the character set forth. the combination of a head, an actuator movable with respect to the head, a pair of grappling jaws, the jaws, head-and actuator being so connected that relative movement between the actuator and head in a given direction results in the jaws being moved to fuse gripping position, and parts carried respectively by theactuator and head for holding said actuator and head in a given relative position with the jaws in gripping condition. y

5. In an implement of the character set forth, the combination of a head, an actuator movable with respect to the head, a pair of grap iiling jaws, the jaws,'head and ac-v tuator being so connected that relative movement between the actuator and head in'a given direction results in the jaws being moved to fuse gripping position, and parts carried respectively by the actuator and head for holding said actuator and head in a given relative position with the jaws in gripping condition, said parts being alterable to render them positive or yielding in their holding function. j g 6. an implement of the character set forth, the combination of a head, an actuator movable with respect to the head and arranged to be engaged by a fuse, a pair of grappling jaws pivoted to the actuator, operative connections between the head and jaws whereby the jaws are caused to c ose when the actuator is moved in a given direction with respect to the head, a la.trl1 carried by the actuator for positive holding engz-igement with a part of the head, and a secondary keeper movably carried by the head and wherewith the latch is adapted to have a yielding holding engagement.

7. In an implement of the character set forth, the combination of a head, an actuator movable with respect to the head and arranged to be engaged by a fuse, a pair of grappling jaws pivoted intermediate their ends to the actuator in a position to embrace a fuse, compressible toggle links disposed between the head and the adjacent ends of the jaws, a latch carried by the actuator for positive holding engagement with a keeper incorporated in the head, and a secondary keeper movably carried by the head and wherewith the latch is adapted to have a yielding holding engagement.

8. In an implement of the character set forth, the combination of a head, an actuator movable with respect thereto, fuse gripping jaws pivoted to the actuator, operative connections between the aws and head whereby relative movement between the actuator and head will close the jaws, a latch carried by the actuator member for holding engagement with a part of the head, and a member movably carried by the head and arranged when in one position to have a part engaged by the latch and serving to prevent the engagement of the latch with the aforesaid part of the head, the latch having a positive holding engagement with one of said parts and a yielding engagement with the other.

9. In an implement of the character set forth. the combination of a head, an actuator movable with respect thereto, fuse gripping jaws pivoted to the actuator, operative connections between the jaws and head whereby relative movement between the actuator and head will close the jaws, a latch carried by the actuator for positive holding engagement with a part of the head, and a member movably carried by the head and arranged when in one position to be yieldingly engaged by the latch and serving to prevent the engagement of the latch with the aforesaid part of the head.

10. In an implement of the character set forth, the combination of two elements one consisting of a head and the other of an ac tuator, said elements being movable with respect to each other, a pair of fuse gripping jaws pivotally connected to one element, operative connections between the other ele ment and said jaws whereby relative movement between the elements will cause the jaws to approach each other. a latch married by one of said elemen the r her elem t having alternative keepers, one for posit holding engagement with the lat-ch and tl other for yielding engagement thrrewith.

11. In an implement of the character set forth, the combination of two elements-1 on consisting of a head and the other a n ;i('tllator movable with respect to the hem pair of fuse gripping jaws movably carried by one element, operative connections between the other element and said jaws whcreby relative movement between the elements ill create movement between the jaws. a latch carried by one element, the other element having alternative keepers. one of which is designed for positive holding on gagement with the latch and the other for yielding engagement therewith.

12. In an implement of the character set forth, the combination of a head, an actuator movable with respect thereto, a pair of fuse gripping jaws pivoted to the actuator, yielding thrust connections between the ends of the jaws opposite those designed for (O()1 0]- at-ion with a. fuse and the head whereby movement of the actuator toward the head will cause the jaws to approach each other, and a latch and a set of keepers carried on: by the head and the other by the actuator, one of the keepers of the set being designel for positive holding engagement with the latch and the other for yielding engagement therewith.

13. In an implement of the character set forth, the combination of a head, an actuator movable with respect to the head, a pair of fuse gripping jaws pivoted to the actuator, yielding toggle connections between the ends of the jaws opposite those designed for cooperation with the fuse and the head, a latch carried by the actuator, a keeper incorporated in the head and where-with the latch is adapted to have positive holding engagement, and a secondary keeper pivoted to the head and designed for yielding engagement with the latch, the secondary keeper when in effective position serving to prevent engagement of the latch with the first mcntioned keeper.

14. In an implement of the character set forth, the combination of a head, an actuator pivoted to the head, jaw supporting brackets pivoted to the opposite sides of the actuator inward of its connection with. the head, jaws pivoted intermediate their ends to the brackets, rods having swivel connections with opposed sides of the head, members carried by adjacent ends of the jaws and wherewith the outer ends of the rods have slidable connections, springs interposed between the head and adjacent ends of the jaws, a latch carried by the actuator, and alternative keepers carried by the head, one designed for positive holding engagement with the latch and the other for yielding engagement therewith.

15. In an implement of the character set forth, the combination of two elements, one consisting of a head and the other of an actuator, said elements being movable with respect to each other, a pair of fuse gripping jaws pivotally connected to one element, and resilient members interposed between the jaws and other element that are adapted to be compressed as the elements are moved toward each other and through the intervention of which the jaws are swung in a -direc tion to grip a fuse, the members relaxing somewhat as the parts assume fuse gripping condition whereby said members tend. to maintain the parts in such condition.

16. In an implement of the character set forth, the combination of two elements, one

consisting of a head and the other of an actuator, said elements being movable with respect to each other, a pair of fuse gripping jaws pivotally connected to one element, toggle connections between the jaws and other element-through the intervention of which the'jaws are swung to fuse gripping position as the elements approach each other, said toggle connections passing over center upon such approach of the elements, and resilient means compressed as the toggle connections swing through dead center and which relax somewhat as said connections pass over center as aforesaid, whereby said means tend to maintain the parts in fuse gripping condition.

1 ,422,eao

17. In an implement of the character set forth, the combination of two elements, one consisting of a head and the other of an actuator, said elements being movable with respect to each other, a pair of fuse gripping jaws pivotally connected to one element, resilient members interposed between the jaws and other element-that are adapted to be compressed as the elements are moved toward each other and through the intervention of which the jaws are swung in a direction to grip a fuse, the members relaxing somewhat as the parts assume fuse gripping condition whereby saidmembers tend to maintain the parts in such condition, and means for limiting the separation of the jaws beyond a given distance.

18. An implement of the character set forth comprising a handle terminating at one end in a goose-neck head, fuse grappling means pivotally connected adjacent its outer end to said head, and operative connections between the head and fuse grappling means whereby the grappling means is actuated by relative-movement between the head and means.

19. An implement of the character set forth comprising a handle, fuse grappling means pivotally connected to the handle, and operative connections between the grapplingmeans and handle whereby said means is actuated by relative movement between the handle and means.

In testimony whereof, I hereunto affix my signature,

HAZEL B. BUSH. 

